Loose-leaf binder.



No. 790,779. PATENTED MAY 23, 1905. C. H. BROWN.

LOOSE LEAF BINDER.

- APPLICATION FILED NOV. 28, 1904.

WITNESSES: iNVENTOR.

llNITED STATES Patented May 23, 1905.

PATENT LOOSE 'LEAF BINDER.

SPECIFICATION forming part of Letters Patent No. 790,779, dated May 23, 1905. Application filed leovemher 28, 1904- Serial No, 234,458.

To all iuhmn it may concern:

Be it known that 1, CHARLES H. Bnowrua citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Loose-Leaf Binders; and I do hereby declare the following to be'a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to that class of binders in which loose leaves are removably secured together in book form; and it has for its object the provision of a binder of this character that is simple, cheap, and durable in its construction and easily and quickly manipulated for the reception or removal of a eaf. 4

The invention is fully described in the following specification and shown in the accompanying drawings, in which Figure 1 is a perspective view of my improved binder with the covers partly broken away, and Fig. 2 is a cross-section thereof.

Referring to the drawings, 1 represents the backing member or holder of my invention, which is U shape in cross-section and has its sides each provided with a longitudinal depression 2, adjacent to the rear edge thereof. The holder 1 is formed or stamped from sheet metal or other suitable material that is of sufficient stiffness to retain its shape.

Mounted within the channel of the holder 1 are one or more binding members 3, each of which is bent from a single piece of wire or other resilientmaterial suitable for the purpose intended. The lower or rear portion of each of the members 3 is shaped to seat within the bottom of the channel formed by the member 1 and is formed with laterally extending loops 4:,which project through the slots 5, provided in transverse alinement in the opposite walls of the depressions 2 in position to receive a locking pin or wire 6, as shown. From the loops 4 the supporting-legs of the member 3 converge toward each other, then extend upwardly a short distance, being formed at this point with depressions 7 to form a receiving-opening for the operatingkey 8, and finally terminate in the impaling pins or prongs 9, which are shaped to conjointly form a transversely-elongated opening and have their ends or points abutting in central position over the key 8. The elongated formation of the prongs 9 render the same of sufficient size to accommodate a considerable number of sheets, while at the same time making them compact in form and also enables sheets to be secured to the prongs when the binder is lying on its side with said prongs in vertical position.

The operating-key 8 is of suificient length to pass through the receiving-opening provided therefor in each of the binding members 3, usually two in number, and to extend beyond one end of the backing member 1, as shown in Fig. 1, the extended end being formed with a winged thumb-piece or other suitable means for gripping and turning the same. Cam-surfaces are provided on the key 8 at its points of impingement with the legs of the members 3 and are so arranged as to cause the companion prongs 9 of each of said members to have a simultaneous receding movement when the key is given aquarterrevolution, thereby enabling loose sheets to be easily secured to or removed from said prongs.

Projecting laterally from the upper edges of the U-shaped member 1 are the flanges 10, to which the covers 11 are intended to be secured or hinged in a suitable manner. It is apparent that the usual form of book-backing may be used should it be desired to cover the back of the member 1.

It is obvious that my invention forms a cheap, durable, and efficient tariff or looseclaim as new, and desire to secure by Letters Patent, is

1. In a loose-leaf binder, achanneled backing member, aseries of binding members each comprising coacting prongs or impaling-pins and having resilient dependent legs: secured within said backing member and shaped to impinge upon an operating-key, and a key mounted between the legs of said binding members longitudinally of the backing member and intermediate the ends of-the resilient legs adapted when turned to cause a simultaneous receding movement of each of the coacting prongs or impaling-pins of each binding member. i 2. In a loose-leaf binder,a channeled holder, one or more binding members each formed from a single piece of resilient.material and comprising coacting impaling-pins, legs depending from each impaling-pin and having portions shaped to receive an operating-key and then diverging and locked to the holder and connected at their lower portions, and a key operative between thekey-receiv'ing portions of said legs to cause a receding movement of the impaling-pins.

3. In an article of the class described, a holder or backing member, one or more binding members secured to said holder or backing member each having converging portions shaped to form a receiving-opening for a key and terminating in companion impaling pins or prongs with their ends in meeting position, and a key in the receiving-opening provided in the binding members therefor and having cam-surfaces for impinging upon the portions forming the openings, whereby the companion prongs of said binding members are caused to recede from each other when the key is turned.-

4. A holder substantially U shape in crosssection having transversely-aimingslots therein, one or more binding members within the channel. of said holder each having laterallyextending loops locked within the alining slots in the holder, resilient portions converging from the loops and shaped to impinge upon an interposed object and prongs shaped to conjointly form a transversely-elongated loop and having their ends in normally abutting position, and a key interposed between the converging portions of said binding members whereby the abutting prongs are caused to have a receding movement as the key is 1'0- tated.

In testimony whereof I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

CHAS. H. BROWN.

Witnesses:

CORNELL SOHREIBER, O. W. OWEN. 

